Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Business
Class Information
Number: 434/355
Name: Education and demonstration > Question or problem eliciting response > Grading of response form > Comparison of response form with standard answer form > Light detector sensing response
Description: Subject matter wherein the examinee"s response is detected by light sensitive means (e.g., a photocell, etc.)










Patents under this class:

Patent Number Title Of Patent Date Issued
8649728 Finger sensing apparatus and method Feb. 11, 2014
8335709 Customer survey device with fraud prevention system Dec. 18, 2012
6879805 Test form having a removable opaque layer, and method and apparatus for printing on the form Apr. 12, 2005
6684052 Scanning system for imaging and storing the images of test answer sheets having open-ended questions Jan. 27, 2004
6366760 Method for imaging test answer sheets having open-ended questions Apr. 2, 2002
6173154 System and method for imaging test answer sheets having open-ended questions Jan. 9, 2001
6112050 Scanning and scoring grading machine Aug. 29, 2000
6079624 Data processing form using a scanning apparatus Jun. 27, 2000
5902116 Electronic learning apparatus with self-adjusting level of difficulty May. 11, 1999
5681170 Electronic learning apparatus with self-adjusting level of difficulty Oct. 28, 1997
5085587 Scannable form and system Feb. 4, 1992
5046005 Test scoring machine Sep. 3, 1991











 
 
  Recently Added Patents
Biological analysis arrangement and approach therefor
Nutritional supplement method
Electronic hand-held device
Etching composition
Techniques for accessing a parallel database system via external programs using vertical and/or horizontal partitioning
Method and system for generating and displaying an interactive dynamic selective view of multiply connected objects
Image forming apparatus
  Randomly Featured Patents
Method for absorption of acrylic compound and apparatus therefor
Ergonomic toilet seat pad
Belt tensioner and method of making the same
Adjustable force pinch roller
Switch for sensing a selected ratio between two different pressures
Lawn and garden battery clamp
Plaster frame for recessed lighting
Corrugated container
Printing method and apparatus correcting ink ejection in each row region using a combined correction value for certain coexistent row regions
Reeling device for hoses and/or cables